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Neural Regeneration Research 2011年第12期6卷 946-950页

作者： jianping zhang Zhenhe Zhou Department of Neurology Wuxi People's Hospital Wuxi 214000 Jiangsu Province China Department of Psychology Wuxi Mental Health Center Wuxi 214151 Jiangsu Province China

The P300, an endogenous subcomponent of the event-related potential, is thought to reflect cognitive processes. The event-related potential evoked by the old-new memory recognition task in the oddball paradigm is suitable for examining the neural processes involved in malingered neurocognitive deficits. Forty-four undergraduates were randomly assigned to a simulated malingering group and a truth-telling group, Another 22 patients with head injudes were enrolled as a control group. All participants completed the old-new memory recognition task in the oddball paradigm. The mean P300 amplitude of the simulated malingering group was significantly reduced compared with the truth-telling group （P 〈 0.01）, but was increased compared with the control group （P〈 0.01）. These results revealed that the P300, evoked by the old-new memory recognition task of the oddball paradigm, may be a helpful indicator for determining cognitive malingering.

关键词： event-related potentials old-new memory recognition task malingered neurocognitive deficit oddball paradigm

MULTI-FIELD COUPLING BEHAVIOR OF SIMPLY-SUPPORTED CONDUCTIVE PLATE UNDER THE CONDITION OF A TRANSVERSE STRONG IMPULSIVE MAGNETIC FIELD

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Acta Mechanica Solida Sinica 2006年第3期19卷 203-211页

作者： Zhu Linli zhang jianping Zheng Xiaojing Department of Mechanics and Engineering Science Lanzhou University Lanzhou 730000 China

In order to study the multi-field coupling mechanical behavior of the simply-supported conductive rectangular thin plate under the condition of an externally lateral strong impulsive magnetic field, that is the dynamic buckling phenomenon of the thin plates in the effect of the magnetic volume forces produced by the interaction between the eddy current and the magnetic fields, a FEM analysis program is developed to characterize the phenomena of magnetoelastic buckling and instability of the plates. The critical values of magnetic field for the three different initial vibrating modes are obtained, with a detailed discussion made on the effects of the lengththickness ratio a/h of the plate and the length-width ratio a/b as well as the impulse parameter on the critical value BOcr of the applied magnetic field.

关键词： multi-field coupling conductive thin plate impulsive magnetic field eddy current dynamic buckling magnetic volume forces

Study of methods for evaluating the probability of multiple site damage occurrences

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Science China(Physics,Mechanics & Astronomy) 2014年第1期57卷 65-73页

作者： zhang jianping zhang JianYu BAO Rui ZHENG XiaoLing Institute of Solid Mechanics Beihang University Beijing Aeronautical Science & Technology research Institute

Two methods currently available for evaluating the probability of Multiple Site Damage(MSD)occurrence were studied in this *** of the methods is a probabilistic analysis approach based on the statistical theory and fatigue characteristics of each structural detail,and the other is an approach which defines the initial damage scenario by means of Monte-Carlo simulation,and multiple initial crack scenarios are randomly generated.A modified method based on the Monte-Carlo simulation was proposed in this paper,in which the random fluctuation of the stress was considered to give more accurate evaluation *** the presented method,the probability of MSD occurrence in a structural element containing multiple details was calculated based on the Monte-Carlo simulation and the p-S-N curve of a single structural *** tests were accomplished using specimens containing 21-similar-details to obtain the fatigue life corresponding to MSD *** on single-detail specimens and static calibration tests were also conducted to get the basic fatigue properties of the material and the degree of stress *** aforementioned three methods were compared and validated via the test *** influence of the stress random fluctuation degree on the probability of MSD occurrence and influence of the distribution types on evaluating the MSD occurrence probability were discussed.

关键词： Multiple Site Damage (MSD) fatigue crack initiation probability stress fluctuation

Re- Thinking Classic Marxist Writers＇ Explications on Nationalism： on the ＂Difficult Dialogue between Marxism and Nationalism＂

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学术界 2015年第5期 257-263页

作者： zhang Sannan zhang jianping College of Humanites and Law Yanshan University Qinhuangdao Hebei 066004 Faculty of Foreign Studies Jiangxi University of Science and Technology Ganzhou Jiangxi 341000

Both Marxism and nationalism are among the most far-reaching thoughts in modern *** dealing the ideological collision between Marxism and nationalism, "Difficult Dialogue" universally exists in the academic *** scholars evaded,ridiculed or even negated classic Marxist writers' explications on *** basically,classic Marxist writers criticize nationalism,it doesn' t mean that Marxism and nationalism inevitably oppose to each *** is highly necessary to analyze the causes of the "difficult dialogue between Marxism and nationalism" and re-thinking classic Marxist writers' explications on nationalism.

关键词：马克思主义民族主义作家对话吃茶学术界

Frequency-constrained Co-planning of Generation and Energy Storage with High-penetration Renewable Energy

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Journal of Modern Power Systems and Clean Energy 2021年第4期9卷 760-775页

作者： Chengming zhang Lu Liu Haozhong Cheng Dundun Liu jianping zhang Gang Li Key Laboratory of Control of Power Transmission and Conversion Shanghai Jiao Tong UniversityShanghaiChina East China Branch of State Grid Corporation ShanghaiChina

Large-scale renewable energy integration decreases the system inertia and restricts frequency regulation. To maintain the frequency stability, allocating adequate frequency-support sources poses a critical challenge to planners. In this context, we propose a frequency-constrained coordination planning model of thermal units, wind farms, and battery energy storage systems (BESSs) to provide satisfactory frequency supports. Firstly, a modified multi-machine system frequency response (MSFR) model that accounts for the dynamic responses from both synchronous generators and grid-connected inverters is constructed with preset power-headroom. Secondly, the rate-of-change-of-frequency (ROCOF) and frequency response power are deduced to construct frequency constraints. A data-driven piecewise linearization (DDPWL) method based on hyperplane fitting and data classification is applied to linearize the highly nonlinear frequency response power. Thirdly, frequency constraints are inserted into our planning model, while the unit commitment based on the coordinated operation of the thermal-hydro-wind-BESS hybrid system is implemented. At last, the proposed model is applied to the IEEE RTS-79 test system. The results demonstrate the effectiveness of our co-planning model to keep the frequency stability.

关键词： Battery energy storage system(BESS) data-driven piecewise linearization generation planning multi-machine system frequency response unit commitment wind farm

Discussion on marine source rocks thermal evolvement patterns in the Tarim Basin and Sichuan Basin,west China

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Chinese Science Bulletin 2007年第A1期52卷 141-149页

作者： zhang Bin ZHAO Zhe zhang ShuiChang CHEN jianping Central Laboratory of Petroleum Geology Research Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China

Taking marine source rocks of lower Paleozoic in the Tarim Basin and Paleozoic ones in the Sichuan Basin as examples, their sedimentation process could be classified into four styles: continuous subsidence with deep sedimentation in early stage, continuous subsidence with deep sedimentation in later stage, that deeply buried-uplift-shallowly buried, and that shallowly buried-uplift-deeply buried. Unlike that in East China, the marine source rocks evolvement patterns did not accord with sedimentation styles one by one in superimposed basins in west China. Taking local geothermal field into account, four types of source rock evolvement patterns were built: that evolved fast in early stage, evolved fast in middle stage, evolved continuously and evolved in multistage. Among them, the 1st pattern contributed little to the present industrial oil pools directly, but paleo-oil reservoirs and gases cracked from crude oils were main exploration targets. Although some gases were found in the 2nd pattern, the scale was not big enough. For the 3rd and 4th patterns, the hydrocarbon potential depended on organic matters maturity in early stage. For relatively low mature rocks, it was possible to generate some oils in later stage; otherwise the main products were gases. Paleo-oil reservoirs remained fairly well in the Sichuan Basin, and most source rocks underwent kerogen-oil-gas processes, which was useful reference to gas exploration in the Tarim Basin.

关键词：热图形海洋源岩石碳氢化合物

Mathematical model of solidification for round CC billets

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Journal of University of Science and Technology Beijing 2005年第5期12卷 400-405页

作者： Yonglin Li Pei Zhao Guoguang Cheng Shengtao Qiu jianping zhang Metallurgical and Ecological Engineering School University of Science and Technology Beijing Beijing 100083 China National Engineering and Research Center for Continuous Casting Technology Central Iron and Steel Research Institute Beijing 100081 China Technology Center Ma＇anshan Iron ＆ Steel Co. Ltd Ma＇anshan 243000 China

A coupled mathematical model was established to simulate the whole solidification process of round billet continuous casting for wheel steel using piecewise linear functions of heat flux density in the mold, the secondary cooling zone and the with- drawing-straightening zone. The calculated results were consistent with the measured data showing that the model accords with the practice. The surface temperature and the solidified shell thickness of round billets are more strongly influenced by casting speed than by casting temperature. The holding zones have effect on surface temperature, which is more obvious for the 450 mm round billet. The relation between casting temperature/speed and solidification end is expressed as a linear function. The solidification end is located after straightening machine.

关键词： round billet surface temperature solidified shell thickness solidification end

Surfactant Effects on the Permeability of Photosynthetic Membrane from Rhodobacter sphaeroides 2.4.1 Probed by Electrochromic Shift of Endogenous Carotenoids

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Chemical Research in Chinese Universities 2018年第6期34卷 989-994页

作者： ZHOU Xuan YU Jie WANG Peng zhang jianping Department of Chemistry Renmin University of China Beijing 100872 P. R. China

Four surfactants, sodium cholate（SC）, n-dodecyl-β-D-maltopyranoside（DDM）, lauryldimethylalnine oxide（LDAO） and Triton X-100（TX）, which are generally used in photosynthetic pigment-protein complexes preparation, were studied on their interaction with photosynthetic membrane from Rhodobacter sphaeroides 2.4.1 by elec- trochromic absorption band-shift of endogenous carotenoids and by vesicle size measurements as well. The surfactant critical micelle concentration（cmc） was found to be negatively correlated with the capability of enhancing the per-meability of photosynthetic membranes to proton, and more elaborated model of snrfactants interacting with membranes was obtained. The electrochromic absorption band-shill measurement might develop into a useful tool to evaluate the effects of surfactants on various membranes.

关键词： Surfactant Photosynthetic membrane Electrochromic effect Carotenoid Permeability

Two-dimensional rectangular bismuth bilayer:A novel dual topological insulator

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Frontiers of physics 2023年第4期18卷 239-247页

作者： Shengshi Li Weixiao Ji jianping zhang Yaping Wang Changwen zhang Shishen Yan Spintronics Institute School of Physics and TechnologyUniversity of JinanJinan 250022China State Key Lab of Crystal Materials and Institute of Crystal Materials Shandong UniversityJinan 250100China

Dual topological insulator(DTI),which simultaneously hosts topological insulator(TI)and topological crystalline insulator(TCI)phases,has attracted extensive attention since it has a better robustness of topological nature and broad application prospects in ***,the realization of DTI phase in two-dimensional(2D)system is extremely *** first-principles calculations,we predict that the 2D rectangular bismuth(R–Bi)bilayer is a novel DTI,featured by topological invariant=1,mirror Chern number C_(M)=–1,and metallic edge states within the bulk band *** interestingly,the TCI phase in bilayer is protected by horizontal glide mirror symmetries,rather than the usual mirror *** bulk band gap can be effectively tuned by vertical electric field and ***,the electric field can trigger the transition between TI and metallic phases for the bilayer,accompanied by the annihilation of TCI *** this basis,a topological field effect transistor is proposed,which can rapidly manipulate spin and charge carriers via electric *** KBr(110)surface is demonstrated as an ideal substrate for the deposition of *** findings provide not only a new strategy for exploiting 2D DTI,but also a promising candidate for spintronic applications.

关键词： dual topological insulator Bi bilayer glide mirror symmetry first-principles calculations

Effect of soothing liver therapy on oocyte quality and growth differentiation factor-9 in patients undergoing in vitro fertilization and embryo transfer

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Journal of Traditional Chinese Medicine 2013年第5期33卷 597-602页

作者： Xing Gao Xiufeng Chang Huilan Du Min zhang jianping zhang Aiping Zhu School of the Inte-gration of Chinese and Western Medicine Hebei Medical University Department of Gynecology and Obstetrics the Bethune International Peace Hospital

OBJECTIVE:To investigate the effect of Soothing liver therapy on infertile women undergoing in vitro fertilization and embryo transfer(IVF-ET)and to explore its ***:Fifty-eight women with tubal infertility were randomized into two groups:30 in an experimental group treated with Xiaoyao powder(Shugan)plus gonadotropin-releasing hormone analog(GnRHa)/follicle-stimulating hormone(FSH)/human chorionic gonadotropin(hCG)and 28 in the control group who were treated with GnRHa/FSH/hCG *** total gonadotropin(Gn)doses required,endometrial thickness,oocyte numbers,high quality embryo production rate and pregnancy rate of the two groups were *** concentration of growth differentiation factor-9(GDF-9)in follicular fluid was detected by western blotting and the expression of GDF-9 mRNA in granulosa cells was measured using reverse tran-scription-polymerase chain reaction ***:In the experimental group,the Gn dose was significantly lower than that in the control group;the endometrial thickness,high quality embryo production and pregnancy rates were significantly higher and the expression of GDF-9 mRNA was also significantly higher than in the control group(all P<0.05).CONCLUSION:Shugan treatment can improve the pregnancy rate of women with tubal infertility;its mechanism is possibly related to the increased expression of GDF-9 in granulosa cells.

关键词： Fertilization in vitro Embryo transfer Growth differentiation factor 9 Follicular fluid Soothing liver therapy